How many people can you fit in a car?
6 - 3 in the back, 2 in the front, and my nan in the ashtray.
Okay, so the joke is that you are packing a car full of people, which should only fit like, five people max. But this dude is saying six because he's putting his grandma, or "nan," in the ashtray. Which is not cool, man. Treat your elders with respect, you knucklehead.
Anonymous
Oh...